package com.zp.system.controller;

import com.zp.common.core.config.CommonProperties;
import com.zp.common.core.entity.R;
import com.zp.common.core.utils.file.FileUploadUtils;
import com.zp.common.core.utils.file.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.HashMap;
import java.util.Map;

/**
 * 通用请求处理
 *
 * @author zhang peng
 */
@RestController
@RequestMapping("/file")
public class FileController {
    private static final Logger log = LoggerFactory.getLogger(FileController.class);

    //    @Autowired
    private CommonProperties commonProperties;

    /**
     * 通用下载请求
     *
     * @param fileName 文件名称
     * @param delete   是否删除
     */
    @GetMapping("/download")
    public void fileDownload (String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request) {
        try {
//            if (!FileUtils.isValidFilename(fileName))
//            {
//                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
//            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
            String filePath = commonProperties.getStaticPath() + fileName;

            response.setCharacterEncoding("utf-8");
            response.setContentType("multipart/form-data");
            response.setHeader("Content-Disposition" ,
                    "attachment;fileName=" + FileUtils.setFileDownloadHeader(request, realFileName));
            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete) {
                FileUtils.deleteFile(filePath);
            }
        } catch (Exception e) {
            log.error("下载文件失败" , e);
        }
    }

    /**
     * 通用上传请求
     */
    @PostMapping("/upload")
    public R uploadFile (MultipartFile file) throws Exception {
        try {
            // 上传文件路径
            String filePath = commonProperties.getStaticPath();
            // 上传并返回新文件名称
            String fileName = FileUploadUtils.upload(filePath, file);
            Map<String, String> map = new HashMap<>(16);
            map.put("url" , commonProperties.getFileServicePath() + fileName);
//            map.put("url",  minioProvider.sendFile(file));
            return R.ok(map);
        } catch (Exception e) {
            return R.fail(e.getMessage());
        }
    }
}
